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Radio Frequency Identification and Sensing Techniques and Their Applications—A Review of the State-of-the-Art

1
School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China
2
College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
3
Nondestructive Detection and Monitoring Technology for High Speed Transportation Facilities, Key Laboratory of Ministry of Industry and Information Technology, Nanjing 211106, China
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(18), 4012; https://doi.org/10.3390/s19184012
Received: 17 July 2019 / Revised: 27 August 2019 / Accepted: 13 September 2019 / Published: 17 September 2019
(This article belongs to the Special Issue Augmented RFID Technologies for the Internet of Things and Beyond)
Radio Frequency Identification (RFID) sensors, integrating the features of Wireless Information and Power Transfer (WIPT), object identification and energy efficient sensing capabilities, have been considered a new paradigm of sensing and communication for the futuristic information systems. RFID sensor tags featuring contactless sensing, wireless information transfer, wireless powered, light weight, non-line-of-sight transmission, flexible and pasteable are a critical enabling technology for future Internet-of-Things (IoT) applications, such as manufacturing, logistics, healthcare, agriculture and food. They have attracted numerous research efforts due to their innovative potential in the various application fields. However, there has been a gap between the in-lab investigations and the practical IoT application scenarios, which has motivated this survey of this research to identify the promising enabling techniques and the underlying challenges. This study aims to provide an exhaustive review on the state-of-art RFID sensor technologies from the system implementation perspective by focusing on the fundamental RF energy harvesting theories, the recent technical progresses and commercial solutions, innovative applications and some RFID sensor based IoT solutions, identify the underlying technological challenges at the time being, and give the future research trends and promising application fields in the rich sensing applications of the forthcoming IoT era. View Full-Text
Keywords: radio frequency energy harvesting; radio frequency identification (RFID); RFID sensor; inductive coupling; backscattering radio frequency energy harvesting; radio frequency identification (RFID); RFID sensor; inductive coupling; backscattering
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Cui, L.; Zhang, Z.; Gao, N.; Meng, Z.; Li, Z. Radio Frequency Identification and Sensing Techniques and Their Applications—A Review of the State-of-the-Art. Sensors 2019, 19, 4012.

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